How many moles of air must escape from a 10 m × 8.0 m × 5.0 m room when the temperature is raised from 0°C to 10°C? Assume the pressure remains unchanged at one atmosphere while the room is heated
a. 1.3 × 10^3 moles
c. 6.5 × 10^2 moles
b. 1.2 × 10^3 moles
d. 3.7 × 10^2 moles
C
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Fill in the blank(s) with correct word
For chlorine gas, the van der Waals constants are: a = 0.658 J?m3/mol2, and b = 5.62 × 10-5 m3/mol. A 3.0-L tank contains 10.0 moles of chlorine gas at a temperature of 625 K. What is the pressure in the container?
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A 5.0-kg mass is attached to the ceiling of an elevator by a rope whose mass is negligible. What force does the mass exert on the rope when the elevator has an acceleration of 4.0 m/s2 upward?
A. 69 N downward B. 29 N downward C. 49 N downward D. 20 N downward E. 19 N downward
A mass oscillates on the end of a spring, both on Earth and on the Moon. Where is the period the greatest?
A) Earth B) the Moon C) the same on both Earth and the Moon D) Cannot be determined from the information given.